重庆大学学报2024，Vol.47Issue(4)：104-113,10.DOI:10.11835/j.issn.1000.582X.2024.04.009
通信延迟下自适应容错控制及其在航天器编队中的应用
Adaptive fault-tolerant control with communication delays and its application in spacecraft formation
摘要
Abstract
An adaptive,robust,fault-tolerant formation control approach is proposed to address the challenges of actuator faults,parameter uncertainty,external disturbances,and communication delays within a formation system.The nonlinear dynamics model of spacecraft relative positions is presented.The adaptive robust fault-tolerant controller is designed with bounded input,and adaptive laws are developed to estimate the values of actuator faults,mass,and upper bound of external disturbances,respectively.Additionally,the Lyapunov stability of the closed-loop system is analyzed,and the necessary conditions to ensure system stability are provided.Numerical simulation results show that the presented control method enables effective formation tracking control,with steady state error of location tracking is less than 1.5×10-3 m and steady state error of velocity tracking is less than 1.8×10-5 m,validating the effectiveness of the proposed method.关键词
编队系统/容错控制/通信延迟/稳定性Key words
formation system/fault-tolerant control/communication delay/stability分类
信息技术与安全科学引用本文复制引用
李刚,周尚波,郭尚志,孟菲..通信延迟下自适应容错控制及其在航天器编队中的应用[J].重庆大学学报,2024,47(4):104-113,10.基金项目
国家自然科学基金面上资助项目(62373104,62272070).Supported by National Natural Science Foundation of China(62373104,62272070). （62373104,62272070）
